Home / 313,928.80-470,882.79-136,436.02

Finding the Fourth Proportional to 313,928.80, 470,882.79 and 136,436.02

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Solution

The fourth proportional to 313,928.80, 470,882.79 and 136,436.02 is: 204,649.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,928.80 : 470,882.79 = 136,436.02 : x
  2. Step 2: Convert to fraction form
    313,928.80/470,882.79 = 136,436.02/x
  3. Step 3: Cross multiply
    313,928.80x = 470,882.79 × 136,436.02
  4. Step 4: Simplify right side
    313,928.80x = 64,245,373,754.10
  5. Step 5: Solve for x
    x = 64,245,373,754.10/313,928.80
  6. Step 6: Final answer
    x = 204,649.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.